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本文考虑了晶粒边界对磁通线格子面钉扎作用的强烈各向异性,指出磁通线格子在切变中存在着对弱钉扎中心的脱钉过程。这一弱钉扎作用在Hc2附近可能有较大的影响。Having considered the anisotropic property of the interaction between grain-boundaries and flux line lattice, we point out that the shearing flow of FLL along grain-boundaries is accompained by the depinning of FLS from weak pinning centers on GB, and this may be responsible for the "tail" of Fp at the vicinity of Hc2.
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